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From: ron@brl-sem.ARPA (Ron Natalie <ron>)
Newsgroups: net.rec.photo
Subject: Re: filters
Message-ID: <592@brl-sem.ARPA>
Date: Sat, 14-Dec-85 14:54:52 EST
Article-I.D.: brl-sem.592
Posted: Sat Dec 14 14:54:52 1985
Date-Received: Mon, 16-Dec-85 04:49:55 EST
References: <1002@homxb.UUCP>
Organization: Ballistic Research Lab
Lines: 22

> Can anyone recomend a filter that will correct the yellow tint
> that is produced when a photo is taken with indoor lighting.
> Also is there a filter that will allow me to use high speed film
> (iso 1000) outside in brite sun light without shooting at 1/1000 sec
> at f22 ?
> 
Go to your camera store and ask, I can never remember the numbers.
The common one (80A?) is for tungsten photo floods.  As I recall this
is not quite the same as normal room lighting, so perhaps they have
a better one.  I typically end up buying one to make my tungsten film
good with my flash/daylight (82?) and shooting tungsten film indoors.
I usually need the extra stop or two that the filter takes when shooting
by ambient tungsten, and need it less in daylight or with flash.
Florescent and various vapour lamps are a different story, but you
said yellow, so I'll assume you're problem is tungsten.

To just cut down on light, use a Neutral Density (ND1, ND2) filter.
This appears just to be a grey hunk of glass.  ND5 is recommended
for taking direct pictures of the sun (I shot some series of a solar
eclipse a few years ago).

-Ron